html,
body {
    width: 100%;
    height: 100%;
}

body {
    background: #F6F7FA;
}

a {
    text-decoration: none;
    color: #333333;
}

.margin-center {
    width: 1200px;
    margin: 0 auto;
}

.font-weight-200 {
    font-weight: 200;
}

.font-weight-400 {
    font-weight: 400;
}

.font-weight-800 {
    font-weight: 800;
}
.color-3{
    color: #333;
}
.color-6{
    color: #666;
}
.color-9{
    color: #999;
}
.color-blue{
    color: #6191FA;
}